brennan



E. J. BRENNAN.

GONVEYER BELT.

APPLICATION FILED Aus 4.1921.

Patented'Sept. 12, 1922.,

2 SHEETSHEET 1.

E. J. BRENNAN. CONVEYER BELT.

CATION FILED Aue.4..1

PatentedSept. 12, 1922.

2 SHEETS SHEET 2.

Patented Sept. 12, 1922.

QUNITEDSTATES 1,428,878 PATENT OFFICE. 1

lnnwann J; BRENNAN, or cnione rmnors.

a ooNvEYE1trELT.

q Application liled egal 4, ean ser ai 110,488,785. f

of coal andi ore cars or the loading 1 and: ,un:

loading of other raw material of afcoarse and heavy, Ilfl tll16,;QOlnp]1S6S dnPlllI'itlltYDf Supposed unitedplies ofdeather, and such a belt is therefore relatively expensive to manufacture. Furthermore, the surface of the belt, being unprotected? becomes worn and torn by, the material being handlednecessitating repairs or replacement at a considerable cost not only for material, but also [for t me 1 and labor-1 It; is therefore the primary objeot of thepresent inventionto providea conveyor belt of such constructionthat it ,willbexe ually as flexible as the jusual multiple leat erwbelt and whicnwillembody means for protecting its material support ling surface from contact with; the 5 material so that theibel't is much morewdurableithan the usual all leather belt and "will less, frequently requireirepairs to be made thereto.

Generally speaking the invention contemplates the provision *ofga .conveyerjbelt coinprising a foundation of flexible sheetf material such for example asleather, which foundation does not require however: to be made up of as many plies, of thismaterial as the ordinary all leather: belt and: anlarrange- 40 1 ment; of wean plates wuponi the supporting surface ofthe foundation so mutually linked i=asato" not impair the flexibility of the belt and yet afford ample protection to'gthermaterial supportingsurfacethereof. i

Another ob'ect of the invention :is to; provide in a structurewsuchfasthat outlined above, a constr'ulction of :the wear: plates such that, while the plates are mutually linked together and arezsecuried tothe 'belt, ,yet

stretching of the belt or its contraction is compensated for substantially aselfectually asYt-hough the: belt? were, made of. leather 8 throughout. a i

Another ob'ect oftthe to so construct certain of thewe ar plates that they will serve i the same purpose 8 as the usual I Figure 3 is y a plan view platesgs: i

, Figure a beltof this type and willthus be adapted to collect andretain materialdischarged onthe belt and in Stll QOfItS being conveyed in a positive manher to the point ot'delivery.

Another objectof, the invention isto so ,construct and arrange v the wearplates that not only; will the belt be as flexible longitudi- ,nally as the ordinary all leather belt, but it, willlikewisepossess the same degree of lateral flexibility this old type of belt so that the belt oftheinvention is adaptable for use under, any conditions, where an all leather belt may be einployeclandwhere uniyersal flexibility isonerof the requirements.

:ylnthe accompanying drawings? e v igure 1 is a plan view of the meeting end portions of aconveyer beltconstructed in accordance with the, present invention: p v ,Figure 2 s a side elevation of the struc- .ture shown 111 Figure 1;

q in rt edge elevationof the eat shown in Figure 3 wear plates; v e

Figure 6is an edge elevation thereof. ;'lhe belt embodying the present invention includesv in structure a foundation 1 foundation liaas usual, formed in a sheet lo fi the desired width and length the ends of ,xvhiclrare to be broughttogether and united so as to produce, an endless belt adapted for travel ,overldruins or the like in the customyi m nnerw Thetinvention ,conteinplates, as previously stated; the; provision upon the material supporting surface of the foundation, of a plufrality o f mutually linked wear plates of a ,llOVQl construction and, arranged in a novel ,rnanner, For; this purpose two types or kinds of plates are employed, one ofthe plates being shown infdetail in Figures, 3, andfl andthe other in Figuresb and 6.

Theplate shown in Figure 3 is indicatedin general by the; numeral" 2 and the same is i preferably of the flat rectangular form illustrated andis provided in diagonally oppoofjoneof the wear i Figure 52 1s a plan View another one not which may beof any fle'xible sheet material i "found suitable for the purpose and preferably 1Q:,l(li fiilihtll', the foundation comprising one 'Ol more plies of such material although 1tis,not required embody a relatively great number plies which are required to "make up the ordinary all'leather belt. T he bility so that the belt is not only substan tially as flexible in a longitudinal direction as the ordinary all leather belt, but it is also flexible transverse to substantially the same degree. It will also be evident that the ribs 15, because of the peculiar manner in which they are formed, serve not only the purpose of collecting and retaining the material to be conveyed, but also to compensate for any stretching or contraction of the leather foundation of the belt.

Having thus described the invention What is claimed as new is:

1. A conveyer belt comprising a foundation of flexible sheet material, and wear plates attached thereto and mutually connected.

2. A conveyer belt comprising foundation of flexible sheet material, and a longitudinally extending series of wear plates attached thereto and mutually connected.

3. A conveyer belt comprising a foundation of flexible sheet material, and mutually connected wear plates upon the surface of the foundation, certain of the wear plates being capable of elongation in the direction of the length of the belt.

4. A conveyer belt comprising a foundation of flexible sheet material, and mutually connected Wear plates upon the surface of the foundation, certain of said plates being resilient and between their ends being outwardly bulged to provide for elongation of the said plates under stretching stresses imposed upon the foundation.

5. A conveyer belt comprising a foundation of flexible sheet material, and mutually connected wear plates upon the surface of the foundation, certain of the plates being resilient and having their intermediate portions outwardly bulged to provide transverse ribs capable of expansion and contraction through the inherent resiliency of the plates to compensate for stretching and contraction of the foundation and to serve also as means for accumulating and retaining the material to be handled upon the belt.

6. A conveyer belt comprising, a foundation of flexible sheet material, and a longitudinal series of wear plates upon the surface thereof, the said plates being provided at their opposite ends with pintle eyes, and pintle pins fitting in the eyes and mutually connecting the plates.

In testimony whereof I affix my signature. EDWARD J. BRENNAN. a 5.] 

